<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <!--在mustache语法中,不仅仅可以直接写变量,也可以写简单的表达式-->
    <h2>{{message}}</h2>
    <h2>{{firstName}},yujinbiao!</h2>
    <h2>{{firstName + ' ' + lastName}}</h2>
    <h2>{{counter * 2}}</h2>
</div>
<script src="../js/vue.js"></script>
<script>
    const app = new Vue({
        el: "#app",
        data: {
            message: "hello",
            firstName: 'kobe',
            lastName: 'bryant',
            counter: 100
        }
    })
</script>
</body>
</html>